14191965 has 12 divisors (see below), whose sum is σ = 24599484. Its totient is φ = 7569024.

The previous prime is 14191939. The next prime is 14191981. The reversal of 14191965 is 56919141.

It can be written as a sum of positive squares in 2 ways, for example, as 9603801 + 4588164 = 3099^2 + 2142^2 .

It is not a de Polignac number, because 14191965 - 2²¹ = 12094813 is a prime.

It is a super-2 number, since 2×14191965² = 402823741122450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157644 + ... + 157733.

It is an arithmetic number, because the mean of its divisors is an integer number (2049957).

Almost surely, 2^14191965 is an apocalyptic number.

14191965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

14191965 is a deficient number, since it is larger than the sum of its proper divisors (10407519).

14191965 is a wasteful number, since it uses less digits than its factorization.

14191965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315388 (or 315385 counting only the distinct ones).

The product of its digits is 9720, while the sum is 36.

The square root of 14191965 is about 3767.2224516214. Note that the first 3 decimals coincide. The cubic root of 14191965 is about 242.1108080306.

The spelling of 14191965 in words is "fourteen million, one hundred ninety-one thousand, nine hundred sixty-five".